CN106190427B - A kind of boiler fired coal additive and preparation method thereof and application method - Google Patents
A kind of boiler fired coal additive and preparation method thereof and application method Download PDFInfo
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- CN106190427B CN106190427B CN201610676167.9A CN201610676167A CN106190427B CN 106190427 B CN106190427 B CN 106190427B CN 201610676167 A CN201610676167 A CN 201610676167A CN 106190427 B CN106190427 B CN 106190427B
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- rare earth
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- earth oxide
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- 239000003245 coal Substances 0.000 title claims abstract description 55
- 239000000654 additive Substances 0.000 title claims abstract description 37
- 230000000996 additive effect Effects 0.000 title claims abstract description 35
- 238000002360 preparation method Methods 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical group [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 39
- 229910001404 rare earth metal oxide Inorganic materials 0.000 claims abstract description 33
- 239000011651 chromium Substances 0.000 claims abstract description 19
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 18
- 239000000843 powder Substances 0.000 claims abstract description 18
- 239000002893 slag Substances 0.000 claims abstract description 18
- UQGFMSUEHSUPRD-UHFFFAOYSA-N disodium;3,7-dioxido-2,4,6,8,9-pentaoxa-1,3,5,7-tetraborabicyclo[3.3.1]nonane Chemical group [Na+].[Na+].O1B([O-])OB2OB([O-])OB1O2 UQGFMSUEHSUPRD-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229960003237 betaine Drugs 0.000 claims abstract description 13
- KWIUHFFTVRNATP-UHFFFAOYSA-N glycine betaine Chemical compound C[N+](C)(C)CC([O-])=O KWIUHFFTVRNATP-UHFFFAOYSA-N 0.000 claims abstract description 13
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910003206 NH4VO3 Inorganic materials 0.000 claims abstract description 8
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical group CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims abstract 2
- 229910004835 Na2B4O7 Inorganic materials 0.000 claims description 13
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 13
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum oxide Inorganic materials [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 claims description 12
- 239000002994 raw material Substances 0.000 claims description 12
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical group O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 claims description 10
- DHMQDGOQFOQNFH-UHFFFAOYSA-N Glycine Chemical compound NCC(O)=O DHMQDGOQFOQNFH-UHFFFAOYSA-N 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000011236 particulate material Substances 0.000 claims description 4
- 238000007873 sieving Methods 0.000 claims description 4
- 239000004471 Glycine Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- KTUFCUMIWABKDW-UHFFFAOYSA-N oxo(oxolanthaniooxy)lanthanum Chemical compound O=[La]O[La]=O KTUFCUMIWABKDW-UHFFFAOYSA-N 0.000 claims description 2
- 238000002485 combustion reaction Methods 0.000 abstract description 16
- 230000000694 effects Effects 0.000 abstract description 7
- 238000006477 desulfuration reaction Methods 0.000 abstract description 5
- 230000023556 desulfurization Effects 0.000 abstract description 5
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 abstract description 3
- 239000002699 waste material Substances 0.000 abstract description 3
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 23
- 229960004418 trolamine Drugs 0.000 description 11
- 239000003546 flue gas Substances 0.000 description 8
- 239000004615 ingredient Substances 0.000 description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 6
- -1 permanganate Substances 0.000 description 6
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 5
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 150000001340 alkali metals Chemical class 0.000 description 3
- 150000001342 alkaline earth metals Chemical class 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical group [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000003197 catalytic effect Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 2
- XTEGARKTQYYJKE-UHFFFAOYSA-M Chlorate Chemical compound [O-]Cl(=O)=O XTEGARKTQYYJKE-UHFFFAOYSA-M 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- 229910002651 NO3 Inorganic materials 0.000 description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 2
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 150000004820 halides Chemical class 0.000 description 2
- 229910052740 iodine Inorganic materials 0.000 description 2
- 239000011630 iodine Substances 0.000 description 2
- 229910000027 potassium carbonate Inorganic materials 0.000 description 2
- 239000001103 potassium chloride Substances 0.000 description 2
- 235000011164 potassium chloride Nutrition 0.000 description 2
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 2
- 229910052761 rare earth metal Inorganic materials 0.000 description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
- 229910000314 transition metal oxide Inorganic materials 0.000 description 2
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical class O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- DQMUQFUTDWISTM-UHFFFAOYSA-N O.[O-2].[Fe+2].[Fe+2].[O-2] Chemical compound O.[O-2].[Fe+2].[Fe+2].[O-2] DQMUQFUTDWISTM-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910000272 alkali metal oxide Inorganic materials 0.000 description 1
- 229910000287 alkaline earth metal oxide Inorganic materials 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002802 bituminous coal Substances 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 150000001845 chromium compounds Chemical class 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 229940124447 delivery agent Drugs 0.000 description 1
- SOCTUWSJJQCPFX-UHFFFAOYSA-N dichromate(2-) Chemical compound [O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O SOCTUWSJJQCPFX-UHFFFAOYSA-N 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002366 halogen compounds Chemical class 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 239000002920 hazardous waste Substances 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 150000002902 organometallic compounds Chemical class 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 235000010333 potassium nitrate Nutrition 0.000 description 1
- 239000004323 potassium nitrate Substances 0.000 description 1
- 239000012286 potassium permanganate Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L9/00—Treating solid fuels to improve their combustion
- C10L9/10—Treating solid fuels to improve their combustion by using additives
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L10/00—Use of additives to fuels or fires for particular purposes
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L10/00—Use of additives to fuels or fires for particular purposes
- C10L10/02—Use of additives to fuels or fires for particular purposes for reducing smoke development
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L10/00—Use of additives to fuels or fires for particular purposes
- C10L10/04—Use of additives to fuels or fires for particular purposes for minimising corrosion or incrustation
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L10/00—Use of additives to fuels or fires for particular purposes
- C10L10/06—Use of additives to fuels or fires for particular purposes for facilitating soot removal
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L2230/00—Function and purpose of a components of a fuel or the composition as a whole
- C10L2230/22—Function and purpose of a components of a fuel or the composition as a whole for improving fuel economy or fuel efficiency
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
The present invention provides a kind of boiler fired coal additive and preparation method thereof and application method.The boiler fired coal additive, including following parts by weight content component, CuO:10-18 parts, NH4VO3: 15-25 parts, Na2B4O7·10H2O:15-20 parts, NaOH:5-10 parts, TEA:8-13 parts, Al powder: 10-20 parts, H2O2: 15-20 parts, chromium slag: 15-25 parts, rare earth oxide: 2-5 parts；It further include 5-10 parts of glycine betaine and MnO:5-10 parts and Fe2O3: 2-6 parts.Additive of the present invention preparation method is simple, combustion-supporting, desulfurization off sulfide effect is splendid, it is small to coal combustion equipment corrosivity, realize waste it is innoxious, at low cost, safe and environment-friendly.
Description
Technical field
The present invention relates to a kind of additive for fire coal, more particularly to combustion-supporting, desulphurization and denitration additive for fire coal and its system
Preparation Method and application method.
Background technique
Currently, combustion-supporting type additive for fire coal, generally using following substance as component: 1) alkali metal, alkaline-earth metal and mistake
Cross metal oxide, such as magnesia, calcium oxide；2) bases or salt of alkali metal, alkaline-earth metal and transition metal, such as nitric acid
Salt, carbonate, chlorate, villaumite and certain acylates etc.；3) oxidant, such as permanganate, potassium nitrate.
Such as: Chinese patent CN101269339A discloses a kind of coal combustion catalyst, by sylvite, industrial grade sodium chloride, life
Lime, alumina, rare earth oxide or rare earth chloride, di-iron trioxide composition, the sylvite are nitrate or carbonate.Chinese patent
CN101220313A discloses a kind of coal combustion catalyst, by oxide, halide, oxyhydroxide, organo-metallic compound, alkali
The salt of metal forms；The oxide is the one or more of alkali metal, alkaline-earth metal and transition metal oxide；The halogen
Compound is NaX, CaX2, HgX, wherein X be fluorine, chlorine, bromine, iodine；The transition metal oxide is MnO etc.；The iodine metal
Salt be KMnO4、Na2CO3、K2CO3。
The shortcomings that existing combustion-supporting type additive for fire coal is as follows: 1) halide easily causes to corrode to coal combustion equipment, especially halogen
Chloride ion in compound additive easily forms HC in coal-fired atmosphere1Gas, to boiler water wall, superheater, reheater piping
It causes to corrode.2) carbonate such as Na2CO3、K2CO3It decomposes at high temperature and generates greenhouse gases CO2, increase the pollution to environment.
3) denitration effect is poor.
In view of above-mentioned deficiency, invent it is a kind of it is combustion-supporting, desulfurization off sulfide effect is good, it is small to coal combustion equipment corrosivity, realize waste
Innoxious, at low cost, safe and environment-friendly additive for fire coal has been urgent need.
Summary of the invention
The technical problem to be solved in the invention, which is that, to be overcome the deficiencies of existing technologies, and a kind of lighting for reduction coal is provided
Temperature and lime-ash carbon content rate improve burning of coal rate, reduce that corrosion coal combustion equipment, desulfurization off sulfide effect be good, dust contains in flue gas
Amount less, additive for fire coal at low cost and preparation method thereof and application method.
The invention adopts a technical scheme as: a kind of boiler fired coal additive comprising following parts by weight content component, CuO:
10-18 parts, NH4VO3: 15-25 parts, Na2B4O7·10H2O:15-20 parts, Al powder: 10-20 parts, H2O2: 15-20 parts, chromium slag: 15-
25 parts, NaOH:5-10 parts, TEA(triethanolamine): 8-13 parts, rare earth oxide: 2-5 parts.
In above scheme, it is preferable that further include 5-10 parts of glycine betaine.It preferably, further include MnO:5-10 parts and Fe2O3: 2-
6 parts.Wherein it is preferred to which rare earth oxide is preferably CeO2Or La2O3One of, it is highly preferred that pressing CeO2/La2O3Mass ratio is
The mixed rare earth oxide of 3.5:1-3.75:1.
The present invention also provides a kind of preparation methods of boiler fired coal additive, and steps are as follows: (1), according to above-mentioned parts by weight
Weigh each component；By CuO, NH4VO340-70 microns of raw material a are milled to rare earth oxide；Al powder and chromium slag are crushed, sieving obtains
Obtain the particulate material b that partial size is 200-250 mesh；By Na2B4O7·10H2O is dissolved in formation mixture A in 100 parts of water, then exists
The NaOH is successively added at 60-80 DEG C into the mixture A and triethanolamine forms mixture B, is eventually adding the H2O2
Raw material c is made；Step (2) is by described raw material a, b, c and other material glycine betaines or/and MnO and Fe2O3It is uniformly mixed and is made.
The present invention also provides the application methods of boiler fired coal additive: the additive of above-mentioned preparation is pressed coal-fired matter by (one)
The 0.15-0.5wt% of amount is added in the fire coal.It (two) is 1:9 by solute/solution quality ratio by the additive of aforementioned preparation
Proportion be configured to aqueous solution, blocky fire coal is impregnated in the aqueous solution, wherein solute and coal-fired mass ratio in solution
Example is 0.15-0.5:1.
In additive for fire coal of the present invention: chromium slag is the waste residue generated in bichromate production process, containing a large amount of water-soluble
Cr6+Compound can promote burning of coal, be catalyzed NOxSwitch to N2And catalysis SO2Switch to for SO3, prevent and treat boiler coke, Cr6+
Compound is reduced avirulent trivalent chromium compound, such as Cr2O3, lower offal treatment cost and environmental pollution.
Al powder promotes coal to ignite rapidly, reduces the ignition temperature of coal, forms aluminium oxide, the alumina catalyzation SO at 500 DEG C2
It is reacted with CO, which is exothermic reaction, reduces SO in flue gas2With CO content, ignition temperature is improved.
The H in above-mentioned additive2O2O can be resolved at 350 DEG C2And H2O, O2Promote coal combustion, at high temperature decompose
H2O and C reaction response, the trans-utilization for improving carbon reduce lime-ash carbon content rate.
Rare earth oxide is oxygen delivery agent and coal combustion catalyst, can promote C cracking reaction, inhibit the dehydrogenative condensation of coal.
Applicant have surprisingly discovered that: when rare earth oxide uses CeO2/La2O3When mass ratio is the mixed rare earth oxide of 3.5:1-3.75:1,
The combustion-supporting desulfurization denitration effect of additive is particularly good.
Triethanolamine, i.e. TEA promote other components evenly dispersed to coal with glycine betaine as dispersing agent and bleeding agent
In charcoal micropore, enhance combustion-supporting, catalytic effect.
In 220 DEG C or so NH4VO3It decomposes, the V of generation2O5Activity with higher, vanadium is similar with copper, and being can
Variable valency metal, can oxygen in catalytic oxide transmitting, promote coal combustion；Its NH4 +And decompose the NH generated3There is catalysis to make coal
With；The NH under the effect of Cr oxide catalyst3With the NO in combustion processxSuch as NO and NO2Strongly exothermic redox reaction occurs, subtracts
Few NOxDischarge.
Na2B4O7·10H2O can eliminate the cinder in coal combustion equipment burner hearth, reduce equipment corrosion.
The beneficial effects of the present invention are: (1) additive raw material at low cost, coal combustion desulphurization denitration is being promoted to realize simultaneously
Hazardous waste is innoxious.(2) additive does not contain chloride ion compound, agglomeration risk corrosion-free to coal combustion equipment.(3) it adds
Agent not carbonate containing, nitrate reduce NOxAnd CO2Discharge, environmental protection.(4), lime-ash carbon content rate is low, burning of coal rate is high, in flue gas
Dust content is few.
Specific embodiment
Below in conjunction with specific embodiment, the present invention will be further described, following each embodiments be merely to illustrate the present invention and
Non- limitation of the present invention.
Embodiment 1:
Ingredient: CuO:10g, NH is carried out by following components4VO3: 15g, Na2B4O7·10H2O:15g, NaOH:5g, TEA(tri-
Ethanol amine): 8g, Al powder: 10g, H2O2: 15g, chromium slag: 15g, CeO2: 2g, glycine betaine 5g.
The preparation method is as follows: (1) is by CuO, NH4VO3And CeO2It is ground to 40-70 microns respectively, is mixed into raw material a；
(2) Al powder and chromium slag are crushed, sieving obtains the Al powder and chromium slag particulate material b that partial size is 200-250 mesh；(3) will
Na2B4O7·10H2O is dissolved in formation mixture A in 100g water, then keeps solution under the conditions of stirring, 60-80 DEG C successively to institute
It states and the NaOH and triethanolamine formation mixture B is added in mixture A, be eventually adding the H2O2Raw material c is made；It (4) will be upper
It states raw material a, b, c and other material glycine betaines is uniformly mixed and is made.
Embodiment 2:
Ingredient: CuO:10g, NH is carried out by following components4VO3: 15g, Na2B4O7·10H2O:15g, NaOH:5g, TEA(tri-
Ethanol amine): 8g, Al powder: 10g, H2O2: 15g, chromium slag: 15g, La2O3: 2g, glycine betaine 5g.The system that the preparation method is the same as that of Example 1
Preparation Method.
Embodiment 3:
Ingredient: CuO:10g, NH is carried out by following components4VO3: 15g, Na2B4O7·10H2O:15g, NaOH:5g, TEA(tri-
Ethanol amine): 8g, Al powder: 10g, H2O2: 15g, chromium slag: 15g, mixed rare earth oxide: 2g, glycine betaine 5g.Wherein, the mixing oxygen
Change rare earth and uses CeO2/La2O3Mass ratio is the mixed rare earth oxide of 3.5:1-3.75:1.The system that the preparation method is the same as that of Example 1
Preparation Method.
Embodiment 4:
Ingredient: CuO:10g, NH is carried out by following components4VO3: 15g, Na2B4O7·10H2O:15g, NaOH:5g, TEA(tri-
Ethanol amine): 8g, Al powder: 10g, H2O2: 15g, mixed rare earth oxide: 2g, glycine betaine 5g.Wherein, the mixed rare earth oxide is adopted
Use CeO2/La2O3Mass ratio is the mixed rare earth oxide of 3.5:1-3.75:1.
The difference of the additive of the embodiment 4 and embodiment 1 is without containing component chromium slag, using mixed rare earth oxide.System
Preparation method of the Preparation Method with embodiment 1.
Embodiment 5:
Ingredient: CuO:10g, NH is carried out by following components4VO3: 15g, Na2B4O7·10H2O:15g, NaOH:5g, TEA(tri-
Ethanol amine): 8g, Al powder: 10g, H2O2: 15g, chromium slag: 15g, mixed rare earth oxide: 2g, glycine betaine 5g, MnO:5g, Fe2O3:
2g.Wherein, the mixed rare earth oxide uses CeO2/La2O3Mass ratio is the mixed rare earth oxide of 3.5:1-3.75:1.
The difference of the additive of the embodiment 5 and embodiment 3 is containing component MnO and Fe2O3.The preparation method is as follows: (1)
By CuO, NH4VO3It is ground to 40-70 microns respectively with mixed rare earth oxide, is mixed into raw material a；(2) by Al powder and chromium slag
It crushes, sieving obtains the Al powder and chromium slag particulate material b that partial size is 200-250 mesh；(3) by Na2B4O7·10H2O is dissolved in 100g
Mixture A is formed in water, then keeps solution under the conditions of stirring, 60-80 DEG C successively into the mixture A described in addition
NaOH and triethanolamine form mixture B, are eventually adding the H2O2Raw material c is made；(4) by above-mentioned raw materials a, b, c and other objects
Expect glycine betaine, MnO and Fe2O3It is uniformly mixed and is made.
Embodiment 6:
Ingredient: CuO:18g, NH is carried out by following components4VO3: 25g, Na2B4O7·10H2O:20g, NaOH:10g, TEA
(triethanolamine): 13g, Al powder: 20g, H2O2: 20g, chromium slag: 25g, mixed rare earth oxide: 2g, glycine betaine 10g, MnO:5g,
Fe2O3: 2g.Wherein, the mixed rare earth oxide uses CeO2/La2O3Mass ratio is the mixed rare earth oxide of 3.5:1-3.75:1.
Preparation method of the preparation method with embodiment 5.
Embodiment 7:
Ingredient: CuO:18g, NH is carried out by following components4VO3: 25g, Na2B4O7·10H2O:20g, NaOH:10g, TEA
(triethanolamine): 13g, H2O2: 20g, chromium slag: 25g, mixed rare earth oxide: 2g, glycine betaine 10g, MnO:5g, Fe2O3: 2g.Its
In, the mixed rare earth oxide uses CeO2/La2O3Mass ratio is the mixed rare earth oxide of 3.5:1-3.75:1.
The difference of the additive of the embodiment 7 and embodiment 6 is without containing component Al powder.Preparation method is the same as embodiment 5
Preparation method.
Embodiment 8:
Ingredient: CuO:15g, NH is carried out by following components4VO3: 20g, Na2B4O7·10H2O:18g, NaOH:7g, TEA(tri-
Ethanol amine): 10g, Al powder: 15g, H2O2: 18g, chromium slag: 20g, mixed rare earth oxide: 3g, glycine betaine 10g, MnO:10g,
Fe2O3: 6g.Wherein, the mixed rare earth oxide uses CeO2/La2O3Mass ratio is the mixed rare earth oxide of 3.5:1-3.75:1.
Preparation method of the preparation method with embodiment 5.
(this is not added by the fired coal combustion situation and blank assay of investigating addition 1-8 of embodiment of the present invention additive
Invention additive fired coal combustion situation) find that additive for fire coal of the present invention has good combustion-supporting, catalytic desulfurization and denitrification effect.
Wherein, the boiler and bituminous coal (calorific value about 6800kcal of steam capacity 60t/h are used in test；Ash fusion point about 1200
℃；Sulfur content 1.0-1.3%；Volatile matter content > 30%；About 13%), consumption of coal amount is 135t/h to ash content.Fire coal of the present invention is added
Agent is added uniformly to be sprayed on fire coal, coal spraying additive amount per ton is 5kg.Wherein, NO in combustion efficiency index such as flue gasx、SO2、
CO concentration and dustiness, furnace temperature and lime-ash carbon content rate are measured using the prior art, and details are not described herein.Test result such as 1 institute of table
Show.
Table 1
| Dosage (kg/t Coal) | Average furnace Warm (DEG C) | Lime-ash contains Carbon rate (%) | Boiler hot Efficiency (%) | Flue gas is flat Equal CO is dense Spend (mg/ Nm3) | Flue gas is flat Equal SO2It is dense Spend (mg/ Nm3) | Flue gas is flat Equal NOxIt is dense Spend (mg/ Nm3) | Flue gas is flat Equal dust-laden Measure (mg/ Nm3) | Ringelman Blackness (grade) | |
| Blank is real It tests | 0 | 820 | 5.36 | 53.5 | 133.3 | 357.9 | 314.6 | 1853.2 | 3 |
| Embodiment 1 | 5 | 867 | 1.97 | 65.9 | 84.3 | 196.2 | 162.3 | 1219.5 | 1 |
| Embodiment 2 | 5 | 866 | 1.98 | 65.8 | 83.6 | 197.5 | 160.3 | 1210.3 | 1 |
| Embodiment 3 | 5 | 900 | 1.15 | 73.9 | 40.4 | 116.7 | 129.4 | 722.2 | 1 |
| Embodiment 4 | 5 | 895 | 1.21 | 74.8 | 53.3 | 173.3 | 261.6 | 733.2 | 1 |
| Embodiment 5 | 5 | 902 | 1.12 | 73.2 | 36.7 | 93.2 | 103.9 | 718.5 | 1 |
| Embodiment 6 | 5 | 925 | 0.89 | 78.6 | 29.9 | 75.2 | 96.3 | 684.3 | 1 |
| Embodiment 7 | 5 | 913 | 0.93 | 77.6 | 34.5 | 89.9 | 100.2 | 713.1 | 1 |
| Embodiment 8 | 5 | 918 | 0.91 | 78.3 | 32.4 | 77.1 | 97.3 | 702.8 | 1 |
The above description of the embodiment is only used to help understand the method for the present invention and its core ideas；Meanwhile for this
The those skilled in the art in field, according to the thought of the present invention, there will be changes in the specific implementation manner and application range,
In summary, the contents of this specification are not to be construed as limiting the invention.
Claims (6)
1. a kind of boiler fired coal additive, it is characterised in that: including following parts by weight content component, CuO:10-18 parts, NH4VO3:
15-25 parts, Na2B4O7·10H2O:15-20 parts, NaOH:5-10 parts, TEA:8-13 parts, Al powder: 10-20 parts, H2O2: 15-20
Part, chromium slag: 15-25 parts, rare earth oxide: 2-5 parts；
The rare earth oxide is CeO2And La2O3, the rare earth oxide is CeO2/La2O3Mass ratio is the mixed of 3.5:1-3.75:1
Close rare earth oxide.
2. boiler fired coal additive according to claim 1, it is characterised in that: further include 5-10 parts of glycine betaine.
3. -2 described in any item boiler fired coal additives according to claim 1, it is characterised in that: further include MnO:5-10 parts and
Fe2O3: 2-6 parts.
4. the preparation method of boiler fired coal additive according to claim 1-3, it is characterised in that including following
Step: step (1) weighs each component according to the parts by weight；By CuO, NH4VO340-70 microns of originals are milled to rare earth oxide
Expect a；Al powder and chromium slag are crushed, sieving obtains the particulate material b that partial size is 200-250 mesh；By Na2B4O7·10H2O is dissolved in
Mixture A is formed in 100 parts of water, and described NaOH, TEA successively then is added into the mixture A at stirring, 60-80 DEG C
Mixture B is formed, the H is eventually adding2O2Raw material c is made；Step (2) is by described raw material a, b, c and other material glycine betaines
Or/and MnO and Fe2O3It is uniformly mixed and is made.
5. the application method of boiler fired coal additive according to claim 1-3, it is characterised in that: will prepare
Additive by the 0.15-0.5wt% of coal quantity be added to it is described fire coal in.
6. the application method of boiler fired coal additive according to claim 1-3, it is characterised in that: will prepare
Additive be configured to solution, fire coal is impregnated in the solution, wherein in solution solute and fire coal mass ratio be
0.15-0.5:1.
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